Rendering

Component: (Network and Table)
Network
100760 - Disclosure - Components of Net Periodic Cost (Detail)
(http://www.eaglematerials.com/20160331/taxonomy/role/DisclosureComponentsOfNetPeriodicCostDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000918646 (http://www.sec.gov/CIK)
Compensation And Retirement Disclosure [Abstract]Period [Axis]
2015-04-01 - 2016-03-31
2014-04-01 - 2015-03-31
2013-04-01 - 2014-03-31
Compensation And Retirement Disclosure [Abstract]
 
 
 
Service Cost - Benefits Earned During the Period
1,039,000  
874,000  
1,129,000  
Interest Cost of Projected Benefit Obligation
1,525,000  
1,278,000  
1,222,000  
Expected Return on Plan Assets
(1,751,000) 
(1,680,000) 
(1,506,000) 
Recognized Net Actuarial Loss
300,000  
609,000  
921,000  
Amortization of Prior-Service Cost
1,773,000  
11,000  
11,000  
Net Periodic Pension Cost
2,886,000  
 
1,092,000  
 
1,777,000